Home / mailings [RHSA-2023:0187-01] Moderate: kernel security update
Posted on 17 January 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Moderate: kernel security update
Advisory ID: RHSA-2023:0187-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0187
Issue date: 2023-01-17
CVE Names: CVE-2021-26401
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 6
Extended Lifecycle Support.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server (v. 6 ELS) - i386, noarch, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6 ELS) - i386, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715 (CVE-2021-26401)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
2061700 - CVE-2021-26401 hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715
6. Package List:
Red Hat Enterprise Linux Server (v. 6 ELS):
Source:
kernel-2.6.32-754.49.1.el6.src.rpm
i386:
kernel-2.6.32-754.49.1.el6.i686.rpm
kernel-debug-2.6.32-754.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-754.49.1.el6.i686.rpm
kernel-devel-2.6.32-754.49.1.el6.i686.rpm
kernel-headers-2.6.32-754.49.1.el6.i686.rpm
perf-2.6.32-754.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
noarch:
kernel-abi-whitelists-2.6.32-754.49.1.el6.noarch.rpm
kernel-doc-2.6.32-754.49.1.el6.noarch.rpm
kernel-firmware-2.6.32-754.49.1.el6.noarch.rpm
s390x:
kernel-2.6.32-754.49.1.el6.s390x.rpm
kernel-debug-2.6.32-754.49.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-754.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-754.49.1.el6.s390x.rpm
kernel-devel-2.6.32-754.49.1.el6.s390x.rpm
kernel-headers-2.6.32-754.49.1.el6.s390x.rpm
kernel-kdump-2.6.32-754.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-754.49.1.el6.s390x.rpm
perf-2.6.32-754.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
x86_64:
kernel-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debug-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-754.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-754.49.1.el6.x86_64.rpm
kernel-devel-2.6.32-754.49.1.el6.x86_64.rpm
kernel-headers-2.6.32-754.49.1.el6.x86_64.rpm
perf-2.6.32-754.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6 ELS):
i386:
kernel-debug-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-754.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
python-perf-2.6.32-754.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.i686.rpm
s390x:
kernel-debug-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-754.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
python-perf-2.6.32-754.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.s390x.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-754.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
python-perf-2.6.32-754.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-754.49.1.el6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-26401
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
